Evidence map›Paper›PMID 26408199›Full record

ArticleThe Journal of biological chemistry2015

The Natural Product N-Palmitoyl-l-leucine Selectively Inhibits Late Assembly of Human Spliceosomes.

Kerstin A Effenberger, Robert C James, Veronica K Urabe, Bailey J Dickey, Roger G Linington, Melissa S Jurica

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Impacts and mechanisms of alternative mRNA splicing in cancer metabolism, immune response, and therapeutics.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Targeting mRNA processing as an anticancer strategy.Nature reviews. Drug discovery · 2020
    Review
  11. Therapeutic approaches to treat human spliceosomal diseases.Current opinion in biotechnology · 2019
    Review
  12. Review
  13. Article
  14. A Challenging Pie to Splice: Drugging the Spliceosome.Angewandte Chemie (International ed. in English) · 2017
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kerstin A EffenbergerFrom the Department of Molecular, Cell and Developmental Biology, Center for Molecular Biology of RNA, and.
Robert C JamesDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064.
Veronica K UrabeFrom the Department of Molecular, Cell and Developmental Biology, Center for Molecular Biology of RNA, and.
Bailey J DickeyDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064.
Roger G LiningtonDepartment of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, California 95064 rliningt@ucsc.edu.
Melissa S JuricaFrom the Department of Molecular, Cell and Developmental Biology, Center for Molecular Biology of RNA, and mjurica@ucsc.edu.

Funding

High-throughput screen for inhibitors of human spliceosomesR01CA136762 · NCI · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI JURICA, MELISSA S · 2010 to 2012
$908k
NCRR: UCSC Integrated Small Molecule Screening FacilityS10RR022455 · NCRR · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI LOKEY, R SCOTT · 2007 to 2007
$500k
NCI NIH HHS R01 CA136762NCI NIH HHS R01CA136762NCRR NIH HHS S10 RR022455
6 · The paper itself

Abstract

The spliceosome is a dynamic complex of five structural RNAs and dozens of proteins, which assemble together to remove introns from nascent eukaryotic gene transcripts in a process called splicing. Small molecules that target different components of the spliceosome represent valuable research tools to investigate this complicated macromolecular machine. However, the current collection of spliceosome inhibitors is very limited. To expand the toolkit we used a high-throughput in vitro splicing assay to screen a collection of pre-fractions of natural compounds derived from marine bacteria for splicing inhibition. Further fractionation of initial hits generated individual peaks of splicing inhibitors that interfere with different stages of spliceosome assembly. With additional characterization of individual peaks, we identified N-palmitoyl-l-leucine as a new splicing inhibitor that blocks a late stage of spliceosome assembly. Structure-activity relationship analysis of the compound revealed that length of carbon chain is important for activity in splicing, as well as for effects on the cytological profile of cells in culture. Together these results demonstrate that our combination of in vitro splicing analysis with complex natural product libraries is a powerful strategy for identifying new small molecule tools with which to probe different aspects of spliceosome assembly and function.

Indexed as

Biological ProductsHeLa CellsHigh-Throughput Screening AssaysHumansIntronsLeucineRNA, MessengerRNA SplicingSpliceosomesStructure-Activity RelationshipBiological ProductsLeucineN-palmitoylleucineRNA, Messengerdrug screeninginhibitornatural productRNA splicingspliceosome

Identifiers

PMID26408199
PMCPMC4646004

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.